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Free Online Watermark Tool

Add Watermarks to Images

Text or logo watermarks · Tile mode · Drag-to-position · PNG, JPG & WebP export · 100% browser-based

This tool adds a text or logo watermark to an image in your browser. Position, size, rotation and opacity are adjustable, with a live preview so you can see the result before exporting. Because the watermark is composited locally, neither your image nor your logo is uploaded anywhere.

Who Uses This Tool?

Common use cases for image watermarking

Photographers
Protect your portfolio images with a subtle copyright notice or logo before sharing online.
Designers & Artists
Add a branded watermark to preview images you share with clients before final delivery.
E-commerce
Stamp product images with your brand or website URL to prevent unauthorised reuse.
Real Estate
Add an agency logo or contact number to property photos before listing them online.
Educators
Mark worksheets or slide screenshots as drafts or confidential before distributing.
Content Creators
Protect social media graphics with a subtle handle or logo watermark in tile mode.

Watermarking Best Practices

Tips for effective and professional watermarks

Keep It Subtle
Set opacity to 40–60% so the watermark is visible but doesn't distract from the image content.
Tile for Stock Images
Use Tile Mode with medium spacing to fully protect preview images — it prevents easy cropping.
Use Transparent PNG Logos
A PNG logo with a transparent background blends seamlessly on any photo or background colour.
Corner Placement
Bottom-right and bottom-left are the most common placements — they stay visible but stay out of the main subject.
Match the Image Tone
Use a white watermark on dark images and a dark watermark on bright images for maximum readability.
Export as WebP for Web
WebP gives smaller file sizes than JPG at the same quality — ideal for watermarked images on websites.

About This Tool

How it works and what makes it private

100% Browser-Based

This tool uses the HTML Canvas API to render watermarks directly in your browser. No image data is ever sent to a server — everything happens locally on your device, even when you are offline.

Full-Resolution Export

The preview is scaled down for performance, but when you export the tool renders the watermark at your image's original pixel dimensions — preserving every detail.

Text & Logo Modes

Add a custom text watermark with your choice of font, size, colour, bold, italic, and rotation. Or upload a logo (PNG with transparency recommended) and control its size and position on the image.

Tile Mode

Enable Tile Mode to repeat your watermark across the entire image in a diagonal grid — ideal for protecting stock photos and preview images from being used without permission.

How to use

1

Upload your image

Drag and drop a photo into the upload area, or click to browse. The image loads straight into the canvas and is never sent to a server.

2

Add text or a logo

Type your watermark text, or upload a logo file to use instead. A transparent PNG logo works best because it blends with the photo underneath.

3

Position and style it

Drag the watermark where you want it, then adjust size, rotation and opacity. Turn on tile mode to repeat the mark across the whole image.

4

Export the result

Choose your output format and download. The watermark is burned into the exported image, so it travels with the file.

At a glance

Watermark types
Text, or an uploaded logo image
Adjustable
Position, size, rotation and opacity, with a live preview
Tile mode
Repeats the mark across the whole image, which is harder to crop out than a single corner mark
Logo advice
A transparent PNG blends with the photo; a logo on a solid background will show its box
Permanence
Composited into the exported image, so it travels with the file
Privacy
Both the photo and the logo stay in your browser

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Frequently asked questions

Quick answers about this free online tool.

Last updated

No. All watermarking is done entirely inside your browser using the HTML Canvas API. Your images never leave your device and are never sent to any server.

You can upload any image format your browser supports — PNG, JPG, WebP, GIF (first frame), BMP, and more. You can also paste an image directly from your clipboard using Ctrl+V (or Cmd+V on Mac).

Tile Mode repeats the watermark across the entire image in a diagonal grid pattern, similar to the watermarks you see on stock photo sites. Use the spacing slider to control how densely the watermark is repeated.

You can click or drag directly on the preview canvas to place the watermark anywhere you like. For common placements, use the 3×3 position preset grid (top-left, centre, bottom-right, etc.).

Yes. Upload a PNG file with a transparent background as your logo for the best results. The transparency is preserved when drawing on the image, so only the visible parts of your logo appear over the photo.

You can export the watermarked image as JPG, PNG, or WebP. JPG and WebP include a quality slider — higher quality means a larger file. PNG is always lossless. For photos, JPG at 85–90% quality is a good balance.

No. The export is always at the original image's full resolution. The preview on screen may appear scaled down for performance, but when you click Download the tool renders the watermark at native resolution.

Yes. Use the Rotation slider or the ±15° buttons to rotate the watermark to any angle from 0° to 359°. This is useful for diagonal watermarks in single-placement mode, or for adjusting the angle in Tile Mode.